# Kross: Cross Every Line — One Path. Each Line. Once.

> One Path. Each Line. Once. (iPhone/iPad app by Octavian Petrescu.)

- Source: https://appshunter.io/ios/app/kross-cross-every-line/id6809721906 (this page in markdown: same URL + `.md`)
- Developer: [Octavian Petrescu](https://appshunter.io/developer/1608216071)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 9 MB
- Languages: American English
- Released: 2026-10-25
- Data updated: 2026-11-12

## What is Kross?

One path. Every line. Once.

Kross is a logic puzzle game built around one deceptively simple challenge: draw a continuous path that crosses every line exactly once.

Plan your route carefully. Avoid the red nodes, never cross the same line twice, and do not trace along the lines. If you lift your finger, resume precisely from the hand marker to keep the path continuous.

Every puzzle is designed as a clean geometric challenge. The Learn chapter introduces the rules, while Flow, Focus, and Master gradually add more subtle routes, strategic decisions, and clever traps. Difficulty comes from the logic of the solution, not from visual clutter.

Inspired by Leonhard Euler’s analysis of the Seven Bridges of Königsberg, Kross brings the spirit of a classic mathematical puzzle into a modern geometric challenge.

FEATURES

• 300 carefully designed logic puzzles
• Every level validated to have a solution
• Four progressive chapters: Learn, Flow, Focus, and Master
• Clean, distraction-free visual design
• Interactive hints that guide you along the solution
• Precise touch controls with sound and visual feedback
• Optimized layouts for iPhone and iPad
• No timers or lives — solve each puzzle at your own pace

KROSS PREMIUM

Kross is free to play, with levels unlocking progressively as you complete them.

Upgrade to Kross Premium at any time to unlock all levels immediately, remove interstitial ads, and use hints without rewarded ads.

One purchase. No subscription.

Can you find the one path that crosses them all?

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kross Premium | $4.99 | one-time |


## Is Kross safe?

Not enough ratings yet to assess Kross.

## Is Kross legit?

Kross: Cross Every Line appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Kross is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-25

No release notes.

## More apps by Octavian Petrescu

- [Smart Ball: Win the cup!](https://appshunter.io/ios/app/smart-ball-win-the-cup/id6444588219)
- [MultiPhoto Fit: Batch Resize](https://appshunter.io/ios/app/multiphoto-fit-batch-resize/id6783004604)
- [PDF Fit: Compress PDFs](https://appshunter.io/ios/app/pdf-fit-compress-pdfs/id6789029847)
- [Before & After Studio](https://appshunter.io/ios/app/before-and-after-studio/id6793289878)
- [Print Photo Studio](https://appshunter.io/ios/app/print-photo-studio/id6802797795)

All apps by Octavian Petrescu: https://appshunter.io/developer/1608216071

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-12.*